With reference to the use of nanotechnology in the health sector, which of the following statements is/are correct 1. Targeted drug delivery is made possible by nanotechnology. 2. Nanotechnology can largely contribute to gene therapy. Select the correct answer using the code given below.?

Option 3 : Both 1 and 2

The correct answer is Both 1 and 2.

• Nanotechnology is the development and the use of techniques to study physical phenomena and develop new devices and material structures in the physical size range from 1 to 100 nanometres (nm).
• 1 nanometre is equal to one billionth of a meter.
• It has an impact on almost all sectors of the economy.
• The research on nanotechnology covers many fields like health, food, computing, textile, energy, transport, space, agriculture, etc.

Used in Drug Delivery and Gene Therapy:

• Nanosystems have different biological properties from large-sized systems.
• This biological property could be used effectively to overcome problems in drug and gene therapy.
• In drug therapy, we face the problems of inefficacy or nonspecific effects; hence, nanosystems are being developed for targeted drug therapy.
• In gene therapy using non-viral systems, the main issues are relatively transient gene expression and lower efficiency than viral vectors.
• Research efforts have focused on understanding the barriers in gene delivery so that non-viral systems can be developed that are as effective as viral systems in gene transfection.